INSTRUCTION MANUAL 4080 Series Function and Arbitrary/Function Generators on lin e co m po ne nt s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be observed during all phases of operation, service, and repair of this instrument. Before applying power, follow the installation instructions and become familiar with the operating instructions for this instrument.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Table of Contents on lin e co m po ne nt s. co m 1. PRODUCT INTRODUCTION ................................................................................................5 1.1 Description .......................................................................................................................5 1.2 Key features ......................................................................................................
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4080 series Function & Arbitrary/Function Generators –Instruction Manual 1. PRODUCT INTRODUCTION 1.1 Description The B&K Precision 4080 Series are laboratory grade synthesized function generators with a wide frequency range of up to 120 MHz. Direct digital synthesis (DDS) techniques are used to create stable, accurate output signals for clean, low distortion sine waves and an extensive selection of built-in standard and arbitrary waveforms.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 2. SPECIFICATIONS 2.1 Function Generator ne nt s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 1µHz ≤ ± 5×10-6 (22℃±5℃） s, ms, Hz, kHz, MHz co Resolution: Frequency Accuracy: Data entry Units: s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Offset Range (open circuit) Freq ≤ 40MHz): ±10Vpk ac + dc (Offset ≤ 2×peak-to peak amplitude) Freq > 40MHz): ±2Vpk ac + dc (Offset ≤ 2×peak-to peak amplitude) Resolution: 2µV (open circuit), 1µV (50Ω) Offset Error: ±5% of setting +10mV (Ampl. ≤ 2Vpp into open circuit) ±5% of setting +20mV (Ampl. > 2Vpp into open circuit) po ne nt s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual high level P2) s. co Frequency Sweep Characteristics Waveform: sine or square Start/Stop Freq.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Sensitivity Input attenuator disabled: Input attenuator enabled: 50mVrms (f: 10Hz ~ 50MHz), 100mVrms (f: 1Hz ~ 100MHz) 0.5Vrms (f: 10Hz ~ 50MHz), 1Vrms (f: 1Hz ~ 100MHz) ne nt s. co m Max.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 3. PANEL DESCRIPTION nt s. co m 3.1 Front Panel ne 3.1.1 Overview of Keys: Key Name lin e Data entry keys: co m po Summary: Most keys have multiple functions. Primary functions are written on the key. Simply press the respective key to enable a primary functions. All Function/Mode keys and some of the numerical entry keys have associated secondary functions indicated above each key in blue.
4080 series Function & Arbitrary/Function Generators –Instruction Manual **: External totalize mode: Press this key to reset and resume event counter *** models 4084AWG and 4086AWG only Function/Mode Keys: Ampl./Pulse width Amplitude Select. Menu Menu Selection FM Enable FM mode AM Enable AM mode Enable Sweep mode Enable Burst mode Sweep Burst Not Available Not Available Not Available Not Available Not Available Not Available Attenuation Selection Low Pass Select Freq. Meas.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Waveform states Sine waveform is enabled (,main waveform) Square waveform is enabled (main waveform) Triangle waveform is enabled Ramp waveform is enabled Arb Arbitrary waveform mode is enabled Frequency Measurement/Totalize states Filter: Low Pass Filter is enabled ATT: Input Attenuator is enabled GATE: Gate received trigger lin e co m po ne nt s. co m Function Generator states Adrs: The instrument is in remote state.
4080 series Function & Arbitrary/Function Generators –Instruction Manual between amplitude and pulse width. The secondary function activates the square waveform 【FSK/PSK】key: Toggle between FSK and PSK modulation (primary function). Activate triangle waveform 【Menu】key: Enter modulation parameters for FSK, PSK, FM, AM and burst modulation and for sweep mode.
4080 series Function & Arbitrary/Function Generators –Instruction Manual MODE: Select LINEAR or LOGarithmic sweep START F :Sweep start frequency STOP F: Sweep stop frequency TIME: Sweep time TRIG: Select trigger source, INTernal or EXTernal FM modulation: FM DEVIA—> FM FREQ —> FM WAVE —> FM SOURCE co m FM DEVIA: Peak frequency deviation FM FREQ: Modulating signal frequency FM WAVE: Modulating signal waveform (sine, square, triangle rising or falling ramp) FM SOURCE: Toggle between internal and external
4080 series Function & Arbitrary/Function Generators –Instruction Manual SPACE T: TRIG: PSK rate trigger mode, internal or external System Function Mode: POWER ON —> ADDRESS —> OUT Z —> INTERFACE—>….. …………BAUD —> PARITY —> BEEP on lin e co m po ne nt s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual s. co m 3.2 REAR PANEL nt Ext.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 4. OPERATING INSTRUCTIONS 4.1 Installation This section contains installation information, power requirements and initial inspection and signal connections for the 4080 series generators. Mechanical Inspection This instrument was carefully inspected before shipment. Upon receipt, inspect the instrument for damage that might have occurred in transit. If any sign of damage is found, notify your B+K Precision distributor. s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual waveform mode used to set the sine or square wave parameters. When one of the modulation modes is active, the parameters of the carrier wave are carried over from the Standard Waveform Settings (for sine or square). Press【shift】 【SW】to toggle between any of the modulation/sweep modes (to set the modulation parameters) and the standard waveform mode (to define the carrier settings for frequency, amplitude and DC offset).
4080 series Function & Arbitrary/Function Generators –Instruction Manual Table of stored waveforms (ArbList) and their memory locations Display Name SINE SQUARE TRIANG UP_RAMP DOWN_RAMP NOISE PULSE P_PULSE N_PULSE P_DC N_DC STAIR C_PULSE No. 15 16 17 18 19 20 21 22 23 24 25 26 27 COMMUT_FU 28~35* Display Name COMMUT_HA SINE_TRA SINE_VER SINE_PM LOG EXP ROUND_HAL SINX/X SQU_ROOT TANGENT CARDIO QUAKE COMBIN ARB1~ARB8 s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Entry of invalid key presses or invalid values If the entered value exceeds the rated range, a beep sound will be heard. If the entered value is below the lower limit, the instrument will automatically change the entry to the lowest possible value. If the entered value exceeds the upper limit, the instrument will automatically revert to the maximum value.
4080 series Function & Arbitrary/Function Generators –Instruction Manual In case of standard waveforms “sine”, “square”, “triangle”, “rising ramp” and “pulse”, numbers can be entered and displayed as Peak-to-peak value (Vpp or mVpp) , root mean square value (Vrms and mVrms) or dBm value. All other waveforms can only be edited or displayed using Vpp or mVpp units only. 4.5.3 Set DC Offset Voltage co m Press【shift】 【offset】to display the current DC offset value.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 4.5.5 TTL Signal A TTL signal output is provided on the front-panel TTL terminal. All signals, including modulated signals and arbitrary waveforms (except DC and noise) have an associated TTL signal. m This signal is a TTL “high” when the waveform’s output (on the main terminal) is positive, relative to zero volts. The signal is a TTL “low” when the output is negative.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 4.6 Set Modulation and Sweep Parameters 4.6.1. Sweep mode In the frequency sweep mode, the function generator “steps” from the start frequency to the stop frequency at a sweep rate which you specify. You can sweep up or down in frequency, and with either linear or logarithmic spacing.
4080 series Function & Arbitrary/Function Generators –Instruction Manual The frequency range from start frequency to stop frequency is 1µHz ~ Fmax in linear sweep mode and 1mHz ~ Fmax in log sweep mode. (Fmax see specification section for main waveform) Sweep time “TIME” The time needed to complete one sweep from start to stop frequency is called sweep time. The sweep time range is 1ms ~ 800s in linear sweep mode or 100ms ~ 800s in LOG sweep mode. nt s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 4.6.2 FM modulation A modulated waveform consists of a carrier waveform and a modulating waveform. In FM, the frequency of the carrier is varied by the amplitude of the modulating waveform. The function generator will accept an internal or external FM modulating signal. Press the 【FM】key to enter into FM mode. The display will indicate the carrier frequency and the “FM” annunciator will be lit.
4080 series Function & Arbitrary/Function Generators –Instruction Manual modulating signal source “external” is selected, the symbol “Ext” is displayed and parameters FM DEVIA, FM FREQ and FM WAVE do not apply (disabled) Start and stop of FM modulation An FM signal is generated once FM function mode is selected. The instrument will automatically output a signal according to the preset parameters.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Modulation depth “AM LEVEL”: The range of modulation depth is 1% ~ 120%. Modulating frequency “AM FREQ” Frequency of the modulating signal. Range is 100µHz ~ 20kHz. Parameter does not apply when “AM SOURCE” is set to “EXTernal” m Modulating signal waveform “AM WAVE”: Waveforms sine, square, triangle, rising and falling ramp can be used as the modulating signal.
4080 series Function & Arbitrary/Function Generators –Instruction Manual described in the previous section of this chapter. The parameters carry over from the parameter settings of the main waveforms sine and square. Press the 【menu】 key repeatedly to cycle through the burst menu parameters listed below. TRIG —> COUNT —> SPACE T —> PHASE TRIG: COUNT: SPACE T: PHASE: Trigger source Number of cycles Burst time spacing The starting phase of the burst s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Enabling/disabling the burst signal The generator outputs a burst as soon as the burst key is pressed. The instrument will automatically output a signal according to the preset parameters. If you do not want to output the burst signal, simply press the【output】key to disable the signal output (LED above Output button is OFF).
4080 series Function & Arbitrary/Function Generators –Instruction Manual “internal”. In internal mode, the rate at which the signal shifts between the carrier and hop frequency is determined by the FSK rate. In external trigger mode, the trigger signal applied to the trigger input terminal on the rear panel determines the FSK rate. Logical “high” of the trigger signal is associated with frequency 2, while the “Low” level of the trigger signal is associated with frequency 1. s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual P2: SPACE T TRIG phase value #2 PSK rate Trigger source for PSK Trigger source “TRIG” Select internal signal and external input signal 1: INT or 2: EXT. The default of the instrument is internal. In internal mode, the phase of the output signal shifts according to the PSK rate parameter. In external trigger mode, the trigger signal is applied to the Ext. Trig” Input terminal on the rear panel.
4080 series Function & Arbitrary/Function Generators –Instruction Manual POWER ON “Power on” state ADDRESS: set GPIB address (option) OUT Z: Configure amplitude display for 50Ω or high impedance load termination INTERFACE: Select RS232 or GP-IB (IEEE-488) interface (option) BAUD: Baud rate for the RS232 interface PARITY: Parity and Data Bits configuration for RS232 BEEP: Toggle the key beep on/off After the selected system parameter flashes for 1 second, the parameter value will be displayed and the value
4080 series Function & Arbitrary/Function Generators –Instruction Manual “BEEP” setting Turns the key beep on or off. Select OFF(“1: CLOSE”) or ON (“2: OPEN”). The default is ON. Example for system function setting Configuration: Set power on state [POWER ON] to default and output impedance to 50Ώ Press【Shift】 【system】 (enter systems menu) Press【menu】, “POWER ON”, press【1】 【N】 (set power on state to default) Press【menu】, select “OUT Z”, press【2】 【N】 (configure for load impedance of 50Ω) 4.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 5. REMOTE INTERFACE REFERENCE 5.1 Introduction An Introduction to the SCPI Language SCPI (Standard Commands for Programmable Instruments) is an ASCII-based instrument command language designed for test and measurement instruments. SCPI commands are based on a hierarchical structure, also known as a tree system. In this system, associated commands are grouped together under a common node or root, thus forming subsystems.
4080 series Function & Arbitrary/Function Generators –Instruction Manual APPLy:SINusoid [, , ] APPLy:SQUare [, , ] APPLy:TRIangle [, , ] APPLy:UP_RAMP [, , ] APPLy:DOWN_RAMP [, , ] APPLy:NOISe [*, , ] APPLy:P_DC [,* , ] APPLy? *: if waveform is Noise or DC, the frequency data contained in the command
4080 series Function & Arbitrary/Function Generators –Instruction Manual AM:DEPTh AM:DEPTh? AM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle|UP_RAMP|DOWN_RAMP|} AM:INTernal:FUNCtion? AM:INTernal:FREQuency AM:INTernal:FREQuency? AM:SOURce {INTernal|EXTernal} AM:SOURce? AM:STATe {ON|OFF} AM:STATe? ne lin e co m po [SOURce:] BM:NCYCles <#cycles> BM:NCYCles? BM:PHASe BM:PHASe? BM:INTernal: Space
4080 series Function & Arbitrary/Function Generators –Instruction Manual PSKey:PHASe2 PSKey:PHASe2? PSKey:INTernal: Space
4080 series Function & Arbitrary/Function Generators –Instruction Manual SYSTEM instructions *IDN？ *RST *SAV {0|1|2|3|4|5|6|7|8|9|10} *RCL {0|1|2|3|4|5|6|7|8|9|10} RS232 specific instructions m SYSTem:LOCAL SYSTem:REMOTE 5.3 Detailed description of SCPI Instructions ne nt s. co APPLy instructions APPLy instructions are used to directly set the output of the function generator through the remote interface including waveform, frequency and offset.
80 series Function & Arbitrary/Function Generators –Instruction Manual PULSe:DCYCle? Check the duty cycle of current pulse output. The returned value is percentage. VOLTage Set the amplitude of the currently active waveform. The amplitude setting should be consistent with the technical specifications. The output amplitude ranges of P_PULSE, N_PULSE, P_DC and N_DC should be 2mVpp ≤ ampl ≤ 10Vpp in high impedance output setting and 1mVpp ≤ ampl ≤ 5Vpp in 50Ω setting.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 3．To set modulating frequency of AM using AM: INTernal: FREQuency instructions. 4．To set the modulation depth of AM using AM: DEPTh {depth in percent} instructions 5．To set modulating source of AM using AM: SOURce {INTernal|EXTernal} instructions 6．To start AM using AM: STATe ON instructions. AM: DEPTh {depth in percent} Set modulation depth of AM. MIN=1%, MAX=120%. AM: DEPTh？ Read the current modulation depth of AM.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Read the current modulating deviation of FM. FM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle……} Set the modulating waveform of FM using SIN, SQU, TRI UP, RAMP or DOWN_RAMP waveforms. FM:INTernal:FUNCtion？ Read the current modulating waveform of FM. The returned data are “SIN”, “SQU”, “TRI”, “UP_RAMP”, “DOWN_RAMP”. FM:INTernal:FREQuency Set the frequency of modulating signal of FM.
4080 series Function & Arbitrary/Function Generators –Instruction Manual BM:SOURce {INTernal|EXTernal|SINGle} Set trigger source of burst as internal (INTernal), external (EXTernal) or single (SINGle). BM:SOURce？ Check current trigger source of burst. BM:STATe {ON|OFF} Turn on burst mode (ON) or turn off burst mode (OFF). BM:STATe？ Check “on/off” state of burst mode. The returned data are “0” (OFF) or “1” (ON). The instrument reverts back to fixed frequency mode in “off” state. s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Set phase 1 of PSK in 0--360º. PSKey:PHASe1？ Check phase 1of PSK PSKey:PHASe2 Set phase 2 of PSK in 0--360º. PSKey:PHASe2？ Check phase 2 of PSK. PSKey:INTernal:SPACe
4080 series Function & Arbitrary/Function Generators –Instruction Manual SWEep:TIME
4080 series Function & Arbitrary/Function Generators –Instruction Manual System related instructions: *IDN？ This query will return the instrument’s manufacturer, model number and firmware version. Example: B+K Precision 4084AWG V1.00 *RST Reset instrument to the default state *SAV {0|1|2|3|4|5|6|7|8|9|10} Save as many as 11 input states of the instrument. Among the 11 states, state 0 is used to automatically store the power off setting of the instrument. States 1~10 are user defined.
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4080 series Function & Arbitrary/Function Generators –Instruction Manual 6. USER PROGRAMMABLE ARBITRARY WAVEFORM MODULE Product Overview In addition to the 27 build-in waveforms, models 4084AWG and 4086AWG also provide the capability to generate and store up to 8 user-defined waveforms in non-volatile memory.
4080 series Function & Arbitrary/Function Generators –Instruction Manual CREATING AND EDITING WAVEFORMS Create waveforms by loading waveform data from a text file or by using the graphical tools of this Software. Working with text files Waveforms can be imported to or exported from a text file with the following format: The first line contains the number of data points, the consecutive lines the Y axis value of the sampling points. (Line 2：waveform value of point 0) -0.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Working with graphical tools Waveform Parameters The waveform parameters are represented in the following format: Values of the vertical axis (Y) are normalized to -1.000 ~ 1.000. Values of the horizontal axis (X axis) are 0 ~ length of waveform minus 1. on lin e co m po ne nt s. co m Setting the number of points The waveform length can be set as required.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Drawing waveforms ne nt s. co m Click on the left mouse key then grab and move the default center line to the desired location. The coordinates of the cursor position will be displayed while “drawing”. Release the left mouse key to stop drawing. m po Clearing the waveform To clear all waveforms in the editing area, click the “Clear” waveform button.
4080 series Function & Arbitrary/Function Generators –Instruction Manual ne nt s. co m immediately in the editing window. po Modifying existing waveforms with mathematical Functions on lin e co m Waveforms can be modified by applying one of the following mathematical functions: Addition, subtraction of waveforms, symmetry of Y-axis and X-axis, division and multiplication by a constant.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Add Add waveform data stored in a text file to the current waveform (displayed on the screen). The resulting new waveform is automatically normalized by dividing the new waveform by 2. To look at it differently, each amplitude value is weighted by a factor 0.5 before the add operation is performed. If the lengths of the two waveforms differ, the longer length is taken as the length of the new waveform.
4080 series Function & Arbitrary/Function Generators –Instruction Manual TRANSFERING WAVEFORM DATA TO THE 408XAWG RS232 communication setup 1) Connect the computer to the 4084AWG or 4086AWG using the RS232 cable included. 2) Set the RS232 parameters of the Arbitrary Waveform Creation Tool lin e co m po ne nt s. co m 3) Set the RS232 parameters in the Systems menu of the 4080 series generator.
4080 series Function & Arbitrary/Function Generators –Instruction Manual m Selecting Other>Send Data from the menu. A pop-up window will indicate the progress of the data transfer. The window will automatically disappear once the data was downloaded successfully. If the download was unsuccessful due to communication problems, a pop message will appear prompting the user to verify the setup and settings of the communication link. co m po ne nt s.
s. co m 4080 series Function & Arbitrary/Function Generators –Instruction Manual po ne nt 4) Click “Set Link” in the “oscilloscope” menu of the software to check the communications link between software and oscilloscope. A pop-up window will indicate successful communication; otherwise, the operation will result in an error message. This operation will also automatically populate the waveform length field based on the oscilloscope’s internal storage memory.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Requirement for RS232 cable connecting the TEKTRONIX oscilloscope and 408xAWG 1 2 3 4 5 6 7 8 9 on lin e co m po ne nt s. co 1 2 3 4 5 6 7 8 9 m Refer to the oscilloscope’s instruction manual. For the TEKTRONIX series digital storage oscilloscopes, a null modem (cross over) using 2 handshake lines is recommended.
4080 series Function & Arbitrary/Function Generators –Instruction Manual 7. APPENDIX Responsible Party B&K Precision Corporation B&K China 1364 m 22820 Savi Ranch Pkwy. Yorba Linda, CA 92887-4610 USA co Manufacturer’s Name: Manufacture’s Address: Alternate Manufacturing Site Declares that the below mentioned product nt Part Numbers: 4084, 4084AWG, 4085, 4086, 4086AWG, 4087 s.
4080 series Function & Arbitrary/Function Generators –Instruction Manual Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the address below. Clearly state in writing the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Return the product in the original packaging to the address below.
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co s. 22820 Savi Ranch Parkway Yorba Linda, CA 92887 www.bkprecision.com m 4080 series Function & Arbitrary/Function Generators –Instruction Manual on lin e co m po ne nt © 2010 B&K Precision Corp. Printed in China Edition 1.
